It was morning, I checked. I was facing east and the ball was lifting off from its below-the-horizon launchpad. I had just wakened, a box of Fruit Loops was on the counter and my toothbrush was still wet. I'm positive it was sunrise.
I'll never be ambiguous about the time of day that my sky paintings are again. I got asked some pointed questions when I claimed I didn't know if it was sunrise or sunset.